Molding machine



Sept. 7 1926.

'A. L. HAYNES MOLDING MACHINE Filed Oct.

14, 1925 3 Sheets-Sheet 1 INVENTOR .Ha nes Hrzhur BYaa A TTO R N EY Sept. 7 1926.

A. L. HAYNES MOLDING MACHINE Filed Ocfn. 14 1925 3 Sheets-Sheet 2 INVENTOR .lhyncs ATTORNEY Sept. 7 1926. 1,598,910

A. L. HAYNES MOLDING MACHI NE Filed Oct. 14, 1925 INVENTOR ATTORNEY Patented Sept. 7, 1926.

UNITED STATES 1,598,910 PATENT OFFICE.

ARTHUR L. HAYNES, OF CLIFTON, KANSAS, ASSIGNOR TO KANSAS TOY & NOVELTY COMPANY, A COPABTNERSHIP COMPOSED OF ARTHUR I HAYNES, ALVIN H. TEGELER, AND CLAYTON D. YOUNG, OF CLIFTON, KANSAS.

MOLDING MACHINE.

Application filed October 14, 1925. Serial No. 62,411.

provide rapid operation and quick produc-' tion of the castings.

In accomplishing this object I have provided improved details of structure, the preferred forms of which are illustrated in the accompanying drawings, wherein Fig. 1 is a plan view of a molding apparatus constructed in accordance with my invention.

Fig. 2 is a side elevation of the same.

Fig. 3 is a lon itudinal section ontheline 33 of Fig.1, showing the mold closed.

Fig. 4 is a similar view, showing the mold open.

Fig. 5 is a perspective view of the parts of the operating section of the mold'in spaced but relative relation.

Fig. 6 is -a perspective view of the mold, particularly illustrating the operating section.

Fig. 7 is a detail erspective view of an article cast in the mo d, a art being broken away to illustrate an ori ce formed in the mold.

Referring more in detail to the drawings:

1 designates a split mold block comprisingsections 2 and 3, each containing one half of a chamber for molding an article for which the mold is adapted, and here illustrated as adapted for molding toy vehicle bodies like that shownfin Fig. 7 of the draw I ings, the present specific form of the casting being merely for purposes of illustration.

Fixed permanently and directly to the mold member 2 is a handle 4, preferabl comprising a cross bar 5 which is attac ed to the back of the mold member by a bolt 6. Fixed to the ends of the mold member 2 by bolts 7 are the arms 8 of the lon 'tudinal bars 9, which project rearwardly om the member 2- and are connected by a cross rod 10, having end portions 11 projected through the bars and anchored thereto by pins 12, the outer ends of which are formed into books 13 for a purpose presently described.

The forward ends of the bars 9 extend beyond the mating mold member 3 and are provided with longitudinal slots 14 and elbow members 15. Fixed to the ends of the mold member 3 by stud bolts 16 are plates 17, those on each end of the mold member being paired and spaced to form a 'deway 18 for the bar 9. Fixed to each pair of plates 17 by rivets 17 and having an edge bearing against the outer face of the mold member 3 is a T bar 19, the shank 20 of which lies against the inner face of the adacent bar 9 and'is provided with, a slot 21, opening to the slot 14 in said bar. Lying alon the outer face of each of the cross bars held thereto in .a manner presently described, is a bar 22 havinga transversely rectangular slot 23 at its rear end openingto a longitudinally rectangular slot 24 in the rear arm of the bark) and having a longitudinal slot 25 in its forward end opening to the slots 14 and 21 in the bar 9 and outer bar 22- resipectively.

xtending transversely through the rectangular openings 23 in the bars 22, and 24 in the bars 9, is a bar 27, held to the outer bars 22 by pins 28 and slidable-in the slots 24 when the outer bars are shifted during the operation of the machine, as presently described.

The mold member 2 (Fig. 3) is provided with spacedv openings 29 containing bushings 30, each of which comprises a collar 30' bearing against the outer face of the mold member and held in place by a finger 31 attached to the mold member by a bolt 32, the finger havin a, collar 33 surrounding the outer end 0 the bushing and bearing against the collar 30. Slidably mounted within the bushing is a'sleeve 34, having its rear. end threaded through the bar 27 and provided with a nut 35, the sleeve having a collar 36 adapted for bearing against the inner. face of the bar 27 to co-operate with the nut 35 in clamping the sleeve'to the bar.

bushings 41 which extend forwardly from the mold member and are provided with collars 42, the bushings being held to the mold member by fingers 43 attached to the mold members by bolts 44, in the same manner that the fingers 31 are attached to the mold member 2. Slidably mounted within the bushings are pins 45 adapted for forming orifices in the casting opposite those formed by the pins 37 carried by the mold member 2,

the pins 45 being attached to a rod 46 which extends transversely in front of the mold member 3 and is slidably mounted in the slots 21 in the T bar '19, the slots 14 iirthe bar 9, and the slots 25 in the outer bars 22 heretofore described.

Mounted in the lower ends of the elbows 15 on the bars 9 is a shaft 47, held in place by cotter pins 48. Pivotall-y mounted on the shaft 47 between and adjacent the bars '9 and spaced therefrom by collars 47 are toggle links 49, the inner ends of which are pivotally connected with and carry a cross rod 49. Also pivotally mounted on the rod 49' are toggle links 50, the inner ends of b which are connected with the rod 46 which carries the mold pins 45'. Fixed to the togglelinks 49 by rivets 51 is a yoke 52, and fixed to the yoke is a handle member 53 whereby the movable parts of the mold may be actuated in a sequential order, as hereinafter described. v The cross rod 46 extends outwardly beyond the outer longitudinal bar 22 and the ends of the rodare connected with the hooks 1-3 at the opposite end of the bars 9 by springs 54 of sufiicient strength to normally retain the rod 46'at the inward limit of its movement to project the pins 45 to the osition indicated in Figs. 1 and 3, and agamst the tension of which the pins are withdrawn to permit removal of a casting. 7

Assuming the parts to be constructed and assembled as described, the operation is as ,follows: When the mold isclosed the parts are in the position illustrated in Figs. 1, 2, 3 and 6, the pins 37 and 45 being projected into their respective mold members and the sleeve 34 being withdrawn from the chamber of the mold member 2. When the parts are .in this position, metal may be poured into the mold to line the walls thereof, the metal forming about thepins so that when the pins are removed, orifices are left in the castings. When the metal has set, the

mold is opened by holding the handle 4 of the mold member 2 firmly and rocking the handle 53. Upon the initial rocking movement of the handle 53, the toggle links are contracted, drawing the rod 46 outwardly in slot mounting and removing the pins 45 from the chamber in the mold member 3 (Fcitg. 4). j

isinitial operation does not affect the pins 37 of the mold member 2, these pins permanently remaining projected into the chamber of mold member 2. The parts are so arranged that when the pins 45 have been from the mold member 2 to open the mold.

When the mold has opened sufliciently to permit removal of the cast object, the rod 46 will have engaged the rear ends of the slots 25 in the outer bars 22 and then draw the outer bars 22 forwardly. Forward movement of the bars 22 induces travel of the cross bar 27 in the rectangular slots 24. of the-bars 9, forcing the sleeve 34 through the bushings 30 and along the pins 34 until the ends of the sleeves pro ect slightly beyond the ends of the pins, thereby loosening the casting'from the mold so that the casting may drop from the mold cham- When this operation has been completed, the rod 46 will have reached the ends of the slots 14 in the ends of the bars 9 and movement of the handle 53 is stopped. The handle 53 may then be returned to its initial position, returning the parts heretofore described to their normal combination in reverse sequenceto that described in connection with the opening operation, and the mold again employed for making a subsequent casting.

It is apparent that with the construction and combination of elements above described, casting of the objects may be effected rapidly and the orifices formed in the castings during the casting operation so that drilling or machining is not required.

What I claim and desire to secure by Letters-Patent is:

- 1. Moldingapparatus of the character described, comprising separable mold members, a stationary core member projecting from one of said mold members, a casting ejecting member projectable from said last with said ejecting member and with the,

other mold member to first open the mold and then project the ejecting member when the handle is moved in one direction and retract the ejecting member and then. close the mold when moved in the other direction.

4. Molding apparatus comprising separable mold members, a core forming member removably projectable into one of the mold members, a casting ejecting member removably projected into the other mold memher, a handle, and. means operable by the handle to open the mold, remove the core forming member, and project the casting ejecting member in the order named.

5. Molding apparatus comprising separable mold members, means mounting the members for opening and closin movement, means projectable into one of members for forming a core, means projectable into the other moldmember for ejecting a casting, a handle me'mber, means operable by the handle member for actuating.

the core forming means, and means operable by the handle for actuating the casting ejectingmeans.

6. In a molding apparatus, separable mold members, means carrying said mold members comprising primary bars, slotted bars connected with one of the mold membars, a rod carried by the primary bars and extending through the slots in said slotted bars, pins on said rod, removably projected into an adjacent mold member, and a ban-- dle operatively connected with said rod to shift the rod and withdraw the pins.

the mold 7. In molding apparatus, -separable mold members, means carrying said mold members comprising primary bars, slotted bars connected with one of'the mold members, a rodcarried by the primary bars and extending through the slots in said slotted bars, pins on said rod, removably projected into an adjacent mold member, and a ban-- dle operatively connected with said rod to shift the rod and withdraw the pins upon primary operation of the handle, and oper- "atively engaging the slotted bars to efiect opening of the mold upon continued operation of the handle. 8. Molding apparatus comprising separable mold'members, a bar secured to one of said members having oppositely directed slotted arms, a bar secured to the other mold member comprisingan arm having a slot opening to the slot in one of the arms of the first-mentioned bar, a third bar having slots opening to the slots in the first mentioned bar, ashaft carried by the first mentioned bar, a rod projecting through and slidable inthe communicating slots of the three mentioned bars, toggle mechanism connecting said shaft and rod, a handle on one pair of the toggle links,.'and pins mounted on said rod and projecting into one of the mold members when the mold is in normal position, the rod having idle travel in the bar slots upon initial movement of the handle to effect removal of the pins and engaging the second named bar to open the mold upon continued movement of the handle.

In testimony whereof I afiix my signature.

' ARTHUR L. HAYNES. 

